once a decade

Serena Williams has won four consecutive Grand Slam tournaments for the second time in her career — with 12 years separating the streaks. If she wins the U.S. Open, she will become the first player to complete a calendar-year Grand Slam since Steffi Graf in 1988.

Serena Slam I (age 21)

Year Tournament Result

2002 French Open def. Venus Williams 7-5, 6-3

2002 Wimbledon def. Venus Williams 7-6 (4), 6-3

2002 U.S. Open def. Venus Williams 6-4, 6-3

2003 Australian Open def. Venus Williams 7-6 (4), 3-6, 6-4

Serena Slam II (age 33)

Year Tournament Result

2014 U.S. Open def. Caroline Wozniacki 6-3, 6-3

2015 Australian Open def. Maria Sharapova 6-3, 7-6 (5)

2015 French Open def. Lucie Safarova 6-3, 6-7 (2), 6-2

2015 Wimbledon def. Garbine Muguruza 6-4, 6-4